Waste Land, Rio de Janeiro, Brazil

Deservedly nominated at this year’s Oscars as Best Documentary Feature, Lucy Walker’s life-affirming film Waste Land, travels to the squalor of Rio de Janeiro, which boasts the largest landfill site in the world.

Last Chance Beach, Battling Erosion in Barbados

Around Barbados, the most serious threat to the beaches is the loss of coral reefs through nearshore pollution, primarily caused by domestic sewage, and physical clearing. As the reefs die, they lose their ability to reduce the energy and erosive force of incoming waves.

Reefs at Risk Report, Revisited: A Wakeup Call to Protect Coral

The new Reefs at Risk Revisited report is out, 13 years after the original Reefs at Risk, which was the first global assessment of the threats to Earth’s coral reefs and painted an alarming picture of their future. Today’s edition is even less rosy: three-quarters of the world’s coral reefs are at risk due to overfishing, pollution, climate change and other factors.

50 million environmental refugees by 2020, experts say

These are people who can no longer gain a secure livelihood in their homelands because of drought, soil erosion, desertification, deforestation and other environmental problems, together with the associated problems of population pressures and profound poverty.